World

North America



What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Nearby Weather Stations - Rocklin Distance
Lincoln Airport 15.0 km
Sacramento Mather Airport 15.4 km
Auburn Airport 19.1 km
Sacramento McClellan Airport 19.8 km
Beale Air Force Base 30.1 km
Sacramento Executive Airport 33.2 km
Nevada 36.1 km
Sacramento Intl. Airport 40.1 km
Yuba 41.4 km
Stockton Metropolitan Airport 51.0 km
Placerville Airport 53.5 km
Oroville Airport 59.5 km
Davis Airport 63.3 km
Blue Canyon 64.3 km
Modesto 73.2 km
Nut Tree Airport 83.4 km
Travis Air Force Base 83.5 km
Chico Airport 90.0 km
Livermore Airport 90.5 km
Columbia Airport 100.8 km
Buchanan Field Airport 102.2 km
Reid- Hillview Airport 106.5 km
South County Arpt Of Santa Clara County 106.7 km
Castle Airport 109.2 km
Hollister Airport 111.1 km
San Jose Intl. Airport 113.2 km
Merced Regional Airport 117.1 km
Hayward Executive Airport 118.0 km
Moffett Federal Airfield 121.0 km
Napa Airport 121.3 km
Watsonville Airport 123.8 km
Palo Alto Airport 124.9 km
Oakland Intl. Airport 125.5 km
Truckee Tahoe Airport 126.1 km
Salinas Airport 129.4 km
San Carlos Airport 135.3 km
Lake Tahoe Airport 137.9 km
Red Bluff Airport 138.6 km
San Francisco Intl. Airport 145.2 km
Monterey Regional Airport 145.3 km
Marin 152.0 km
Redding Airport 155.6 km
Petaluma Airport 155.8 km
Reno Stead Airport 159.1 km
Eddie Andreini Sr. Airfield 159.5 km
Madera Airport 161.5 km
Reno 166.4 km
Carson City Airport 168.7 km
Alturas Airport 173.7 km
Santa Rose Airport 177.0 km
Paso Robles Airport 190.4 km
Mount Shasta 191.2 km
Naval Air Station Lemoore 199.2 km
Crater Lake 202.9 km
Fresno Yosemite Intl. Airport 203.6 km
Trinity Center 207.9 km
San Luis Obispo County Regional Airport 213.3 km
Lake County Airport 214.1 km
Ukiah Airport 220.0 km
Weaverville 220.9 km
Siskiyou 223.4 km
Hanford Airport 227.4 km
Santa Maria Public Airport 238.1 km
Vandenberg Space Force Base 243.5 km
Visalia Airport 246.7 km
Lompoc Airport 250.0 km
Santa Ynez Airport 269.7 km
Mammoth Yosemite Airport 274.2 km
Medford Airport 279.0 km
Naval Air Station Fallon Airport 284.1 km
Porterville Airport 286.4 km
Hawthorne Industrial Airport 289.6 km
Santa Barbara Airport 291.1 km
Derby Field 305.3 km
Meadows Field Airport 306.7 km
Eastern Sierra Regional Airport 328.6 km
Rohnerville Airport 339.8 km
Oxnard Airport 342.2 km
Arcata 348.3 km
Camarillo Airport 349.5 km
Naval Air Station Point Mugu 351.6 km
Sandberg Airport 357.4 km
Tehachapi Airport 370.8 km
Crescent City 379.6 km
Brookings Airport 393.7 km
Van Nuys Airport 397.0 km
Winnemucca Airport 399.4 km
Mojave Air and Space Port Airport 399.8 km
Whiteman Airport 400.9 km
General William J. Fox Airfield 402.8 km
Santa Monica Airport 406.9 km
Burbank 408.8 km
Palmdale Regional Airport 418.7 km
Downtown Los Angeles 423.8 km
Rome State Airport 428.8 km
Edwards 428.9 km
Edwards Air Force Base 429.4 km
Naval Air Weapons Station China Lake 430.0 km
San Gabriel Valley Airport 440.0 km
Grey Butte Field Airport 458.7 km

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